Tootfinder

Nielsen numbers of $n$-valued maps on infra-solvmanifolds
Karel Dekimpe, Lore De Weerdt
https://arxiv.org/abs/2506.13438 https://arxi…

Nielsen numbers of $n$-valued maps on infra-solvmanifolds
We derive a formula for the Nielsen number $N(f)$ for every $n$-valued self-map $f$ of an infra-solvmanifold. To do this, we express $N(f)$ in terms of Nielsen coincidence numbers of single-valued maps on solvmanifolds, and derive a formula for Nielsen coincidence numbers in that setting.

"an ad‑blocker may infringe website copyright, even though it merely prevents certain content from being displayed. " lol fuck off german courts
https://mastodon.neilzone.co.uk/@neil/115014296848731343

Granulation signatures in 3D hydrodynamical simulations: evaluating background model performance using a Bayesian nested sampling framework
Jens R. Larsen, Mia S. Lundkvist, Guy R. Davies, Martin B. Nielsen, Hans-G\"unter Ludwig, Yixiao Zhao, Luisa F. Rodr\'iguez D\'iaz, Hans Kjeldsen
https://arxiv.org/abs/2507.1169…

Granulation signatures in 3D hydrodynamical simulations: evaluating background model performance using a Bayesian nested sampling framework
Understanding the granulation background signal is of vital importance when interpreting the asteroseismic diagnostics of solar-like oscillators. Various descriptions exist in the literature for modelling the surface manifestation of convection, the choice of which affects our interpretations. We aim to evaluate the performance of and preference for various granulation background models for a suite of 3D hydrodynamical simulations of convection across the HR diagram, thereby expanding the numbe…

Products of involutions in symplectic groups I: bireflections
Klaus Nielsen
https://arxiv.org/abs/2507.11056 https://arxiv.org/pdf/25…

Products of involutions in symplectic groups I: bireflections
We classify bireflectional elements (products of 2 involutions) in symplectic groups Sp$(2n, K)$ over a field $K$. We also classify rev ersible elements (elements conjugate to their inverses) and bireflectional elements in finite projective symplectic groups PSp$(2n,q)$.

Condition Monitoring with Machine Learning: A Data-Driven Framework for Quantifying Wind Turbine Energy Loss
Emil Marcus Buchberg, Kent Vugs Nielsen
https://arxiv.org/abs/2506.13012

Condition Monitoring with Machine Learning: A Data-Driven Framework for Quantifying Wind Turbine Energy Loss
Wind energy significantly contributes to the global shift towards renewable energy, yet operational challenges, such as Leading-Edge Erosion on wind turbine blades, notably reduce energy output. This study introduces an advanced, scalable machine learning framework for condition monitoring of wind turbines, specifically targeting improved detection of anomalies using Supervisory Control and Data Acquisition data. The framework effectively isolates normal turbine behavior through rigorous prepro…

Meta-Metrics and Best Practices for System-Level Inference Performance Benchmarking
Shweta Salaria, Zhuoran Liu, Nelson Mimura Gonzalez
https://arxiv.org/abs/2508.10251 https://…

Meta-Metrics and Best Practices for System-Level Inference Performance Benchmarking
Benchmarking inference performance (speed) of Foundation Models such as Large Language Models (LLM) involves navigating a vast experimental landscape to understand the complex interactions between hardware and software components. However, evaluating every possible test configuration is impractical, unfeasible and unnecessary. To address this challenge, we introduce FMwork, a comprehensive and methodical approach to creating a controlled testing environment that accurately reflects and characte…

THOR: a GPU-accelerated and MPI-parallel radiative transfer code
Chris Byrohl, Dylan Nelson
https://arxiv.org/abs/2507.11603 https://…

THOR: a GPU-accelerated and MPI-parallel radiative transfer code
Emission and absorption line features are important diagnostics for the physics underlying extragalactic astronomy. The interpretation of observed signatures involves comparing against forward modeled spectra from galaxy formation simulations as well as more simplified geometries, while including the complex scattering radiative transfer (RT) of resonant emission lines. Here, we present thor, a modern C++ radiative transfer code focused initially on resonant emission lines. thor is a high-perfo…

Improving Online Bin Covering with Little Advice
Andrej Brodnik, Bengt J. Nilsson, Gordana Vujovi\'c
https://arxiv.org/abs/2506.09004 https://

Improving Online Bin Covering with Little Advice
The online bin covering problem is: given an input sequence of items find a placement of the items in the maximum number of bins such that the sum of the items' sizes in each bin is at least~1. Boyar~{\em et~al}.\@~\cite{boyar2021} present a strategy that with $O(\log \log n)$ bits of advice, where $n$ is the length of the input sequence, achieves a competitive ratio of $8/15\approx0.5333\ldots$. We show that with a strengthened analysis and some minor improvements, the same strategy achieves t…

Quantum circuit complexity and unsupervised machine learning of topological order
Yanming Che, Clemens Gneiting, Xiaoguang Wang, Franco Nori
https://arxiv.org/abs/2508.04486 htt…

Quantum circuit complexity and unsupervised machine learning of topological order
Inspired by the close relationship between Kolmogorov complexity and unsupervised machine learning, we explore quantum circuit complexity, an important concept in quantum computation and quantum information science, as a pivot to understand and to build interpretable and efficient unsupervised machine learning for topological order in quantum many-body systems. To span a bridge from conceptual power to practical applicability, we present two theorems that connect Nielsen's quantum circuit compl…

Calamus 24 I hear it is charged against me
This poem feels just so typically Whitman, but lesser somehow. Not one of my favorites.
He says he is "charged that I seek to destroy institutions". Charged by whom, one wonders, is he really so important? He sort of denies this, or is ambivalent to it, and then gets to the queer part:
I will establish ... the institution of the dear love of comrades
And here we are again at the central queer question: just what does he mean by "dear love of comrades"? As I read these poems I'm increasingly thinking it's both things. Sure, it's brotherly love, adhesiveness, a sort of robust fraternity. But so much of his writing and life is homoerotic it has to also have that charge. It can be both.
I feel like I've heard that phrase "the institution of the dear love of comrades" repeated often.